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With system having a small memory (around 256MB), the state "cannot allocate memory to refill with new buffer" is reach pretty quickly. By this patch we changed buffer allocation method to a better handling of this use case by avoiding memory allocation issues. Signed-off-by: Yelena Krivosheev <yelena@marvell.com> [gregory: extract from a larger patch] Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com> Signed-off-by: David S. Miller <davem@davemloft.net>